Please fast

A process contains eight virtual pages on disk and is assigned a fixed allocation of four page frames in the main memory. a) Show the successive pages residing in the four frames using the LRU (least recently used) policy. - How many page table hits were there? - How many misses? - How many misses were unavoidable? - Explain the result (1 sentence) c) Repeat for the optimal algorithm - How many page table hits were there? - How many misses? - How many misses were unavoidable? - Explain the result (1 sentence)